Comments

>> gcc seems to define __builtin_clz as __clzsi2 in some architecture.>> But, kernel doesn't link libgcc.a.>> If kernel should use gcc's built-in function without libgcc.a,>> do we need to port __clzsi2 to 'arch/*/lib/*'?>>This breaks alpha (gcc-4.4.4) as well. Can we please get this fixed>promptly?
__clzsi2 can be implemented by using generic functions.
It can be overridden by linking arch-specific versions may not be implemented.
does this way look acceptable?
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